Thermometer



FIG. 1 is a front elevational view of a thermometer showing my design;

FIG. 2 is a left side elevational view of the thermometer shown in FIG. 1, the right side view being a substantial mirror image thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front perspective view thereof. 

The ornamental design for a thermometer, substantially as shown and described. 